Eugene andrew e



(No Model.)

B. A. E. BRAUNLIGH.

SASH BALANCE.

Patented Feb. 22 1898.

INVE/V TOR WITNESS,

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EUGENE ANDRE? E. BRAUNLICH, OF NEW YORK, N. Y.

SASH- BALANCE.

SPECIFICATION forming part of Letters Patent No. 599,313, dated February 22, 1898.

Application filed October 14, 1897.

To all whom it may concern.-

Be it known that I, EUGENE ANDREW E. BRAUNLIOH, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Sash- Balances, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to sash-balances, and more particularly to that class thereof which is designed to maintain the window-sash in the proper position by means of friction.

The object of the invention is to provide a balance of the above-described class which will obviate the necessity for the use of the counterbalance now most commonly employed and which will readily permit the raising or lowering of the window-sash and its maintenance in the desired position without the exertion of any great amount of strength or such a motion of the window-sash as will endanger the glass therein.

A further object of the invention is to pro vide a sash-balance that will be simple in construction, eflicient in operation, and inexpensive to manufacture.

The invention consists in the novel features of construction hereinafter set forth and described, and more particularly pointed out in the claim hereto appended.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a rear elevation of my improved sashbalance; Fig. 2, a section 011 the line 2 2 of Fig. 1, and Fig. 3 a section on the line 3 3 of Fig. 2.

Like letters refer to like parts throughout the several views.

In the accompanying drawings, a denotes the jamb-plate, which is designed to be so arranged in relation to the window-frame as to be flush therewith and which is provided with inwardly-projecting lugs 79 12 having suitable bearings therein for a transverse shaft 61.

Rigidly mounted on the shaft d is a ratchetwheel fand a guide-disk g, said wheel and said disk being mounted at a suitable distance apart, sufficient to allow of the introduction of the sash cord or band it, which is attached .to the shaft d between said parts and adapted $e1'ial lie/655,181. (No model.)

by them to be held in the proper relation during the winding and unwinding process.

Between the guide-disk g and the lug b is a coiled spring 75, the ends of which are attached, respectively, to the jamb-plate a and the shaft cl, which revolves in the hearings on the lugs on said plate.

Loosely mounted on the shaft (1 is a ratchetwheel m, of larger dimensions than the wheel f before mentioned, and which is adapted by means of a spring-actuated pawl m mounted thereon and adapted to engage the teeth of the ratchet f, to rotate in one direction only with said ratchet f, or, in other words, to be rigidly mounted to the shaft 61 by means of the pawl m and the ratchet f. This ratchet m is mounted in such proximity to the lug?) as to be in constant frictional contact therewith. To hold said ratchet m stationary when the window is being lowered, I provide a pawl n, which will engage with said ratchet, and thus permit of the independent movement of the remaining portion of the mechanism when said window is being lowered.

In practice my improved sash-balance is applied as follows: The logs Z) Z) are inserted in a depression in the window-frame, leaving the surface of the plate a flush with the exposed surface of said sash, thus readily permitting a free vertical movement of the window-sash. The sash cord or band it is then attached to the sash of the window, care be ing taken that the various parts be in such relation as will result in an increase of tension on the spring 7: when the window is low ered. Thus it will readily be understood that whenthe window is lowered the guide-disk g and the ratchet fwill revolve free of the ratchet m, which will be held stationary by means of the pawl n, by reason of the sash cord or band h being mounted on the shaft cl, to which these parts are rigidly connected. This operation will also so increase the tension of the spring 7t,by coilingit more tightly, as, were it not for the means of connection between the ratchet f and the said ratchet being in frictional contact with the lug b, would raise the window without the necessity of touching the same. By exerting a very slight upward pressure on the window-sash the frictional binding between the lug b and the ratchet m will be sufficiently overcome to allow of a free rotation of all the parts between said lugs, said ratchet m being revoluble by means of the pawl m mounted thereon, operating in conjunction with the teeth of the ratchet f.

The construction of my improved balance is also such as will admit of its use in connection with sashes of different Widths with equal efficiency, as it is clearly obvious that the compactness with which it may be combined is merely limited by the strength of the material of which it is to be composed.

Having fully described my invention, I claim as new and desire to secure by Letters Patent- In a sash-balance, the combination with a I jamb-plate and parallel lugs thereon, of a transverse shaft mounted between said lugs,

a ratchet-wheel, and a guide-disk mounted on said shaft, a sash-cord mounted between said ratchet and said disk, a spring exerting constant torsional strain on said shaft, a ratchet-wheel mounted loosely on said shaft, and adapted to rotate in one direction only with said first-mentioned ratchet, whereby a frictional binding exists in connection with one of said lugs, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 11th day of October, 1897.

EUGENE ANDREW E. BRAUNLICH.

Witnesses:

WM. VAN WELDEN, THEO. REDLIoH. 

